/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    background-color: #f1f1f1;
    padding: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    padding: 10px;
    text-align: left;
}

th {
    background-color: #333;
    color: #fff;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

/* 按钮样式 */
button {
    background-color: #4CAF50;
    color: #fff;
    border: none;
    padding: 8px 16px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background-color: #45a049;
}